minnow

The noun is derived from Late Middle English menew, menowe (“small fish; (specifically) common minnow (Phoxinus phoxinus); or stickleback (possibly the three-spined stickleback, Gasterosteus aculeatus)”), from Old English *mynwe, an oblique form of *mynu, a variant of myne (“minnow; small fish”), from Proto-West Germanic *muniwu (“minnow; small fish”), from Proto-Indo-European *men- (“small”). Possibly influenced by Anglo-Norman menu (“small”) and Old French menu (“small”), and English minim (“anything very minute; applied to animalcula and the like”).

The adjective and verb are derived from the noun.